Security Bulletin: IBM App Connect Enterprise is vulnerable to a denial of service due to cURL libcurl and Google protobuf-java. (CVE-2022-42915, CVE-2021-22569, CVE-2022-3509, CVE-2022-3171, CVE-2022-3510)

Summary

IBM App Connect Enterprise is vulnerable to a denial of service due to cURL libcurl and protobuf-java. IBM App Connect Enterprise v12 OpenTelemetry trace is affected by cURL libcurl (CVE-2022-42915). IBM App Connect Enterprise v11 and v12 DFDL is affected by protobuf-java (CVE-2021-25569, CVE-2022-3509, CVE-2022-3171, CVE-2022-3510). The resolving fix includes cURL libcurl >= version 7.86.0 and protobuf-java >= version 3.22.2

Vulnerability Details

CVEID:CVE-2022-42915
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by a double-free flaw in the error/cleanup handling. By sending a specially-crafted CONNECT request, a remote attacker could exploit this vulnerability to cause HTTP proxy to refuse the request, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239060 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-22569
**DESCRIPTION:**Google Protocol Buffer (protobuf-java) is vulnerable to a denial of service, caused by an issue with allow interleaving of com.google.protobuf.UnknownFieldSet fields. By persuading a victim to open a specially-crafted content, a remote attacker could exploit this vulnerability to cause a timeout in ProtobufFuzzer function, and results in a denial of service condition.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216851 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID:CVE-2022-3509
**DESCRIPTION:**protobuf-java core and lite are vulnerable to a denial of service, caused by a flaw in the parsing procedure for textformat data. By sending non-repeated embedded messages with repeated or unknown fields, a remote authenticated attacker could exploit this vulnerability to cause long garbage collection pauses.
CVSS Base score: 5.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239915 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2022-3171
**DESCRIPTION:**protobuf-java core and lite are vulnerable to a denial of service, caused by a flaw in the parsing procedure for binary and text format data. By sending non-repeated embedded messages with repeated or unknown fields, a remote authenticated attacker could exploit this vulnerability to cause long garbage collection pauses.
CVSS Base score: 5.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/238394 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2022-3510
**DESCRIPTION:**protobuf-java core and lite are vulnerable to a denial of service, caused by a flaw in the parsing procedure for Message-Type Extensions. By sending non-repeated embedded messages with repeated or unknown fields, a remote authenticated attacker could exploit this vulnerability to cause long garbage collection pauses.
CVSS Base score: 5.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239916 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability/vulnerabilities now by applying the appropriate fix to IBM App Connect Enterprise

Interim fix for APAR (IT43565) is available to apply to 12.0.8.0 from

IBM Fix Central

IBM App Connect Enterprise| 11.0.0.1 - 11.0.0.20| IT43565|

Interim fix for APAR (IT43565) is available to apply to 11.0.0.20 from

IBM Fix Central

Workarounds and Mitigations

None